What To Do If Livestock Feed Complete Equipment Overheats?

Nov 25, 2025

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The core cause of overheating in the gearbox of livestock and poultry pellet feed equipment is abnormal lubrication and gear wear. Insufficient lubricating oil or deteriorated oil quality are the primary factors. When the lubricating oil level in the gearbox is below the lower limit of the oil level gauge, the gears cannot be adequately lubricated, leading to high temperatures due to dry friction. Lubricating oil used for too long (more than 1000 hours) will become cloudy, its viscosity will decrease, and its lubrication effect will fail. In an emergency, the machine must be stopped immediately. After the gearbox has cooled to room temperature, the old oil should be drained, the inside of the gearbox cleaned with diesel fuel, and then 46# anti-wear hydraulic oil of the correct specification should be added, maintaining the oil level at the middle mark on the oil level gauge. For long-term prevention, an oil change log should be established. The first oil change should be performed after 100 hours of operation for new equipment, followed by changes every 1000 hours of operation. The oil level and quality should be checked weekly, and any leaks should be promptly addressed by replacing the oil seals. Gear wear is also a significant cause. When gears experience tooth surface peeling or pitting, the meshing clearance increases, leading to impact friction and heat generation during operation. This requires disassembling the gearbox, replacing worn gears, and adjusting the gear meshing clearance to 0.15-0.2mm.

Overheating of drive belts is mainly due to improper tension and belt aging. An overly tight belt results in excessive pressure between the belt and pulley, increasing friction and generating high temperatures, while also increasing the motor load. An overly loose belt causes slippage, and the heat generated by sliding friction also leads to overheating. To resolve this, use a tension meter to measure the belt tension and control the V-belt tension between 15-20N, achieving precise adjustment by adjusting the position of the tensioner. Belt aging (such as cracks or hardening) leads to a decrease in the coefficient of friction, making it prone to slippage and overheating. Replace the drive belt with the same model, ensuring all belts are of the same length to avoid uneven stress. For gear-driven systems, overheating is often due to poor gear meshing. Check the gear surfaces for foreign objects, clean them, adjust the meshing clearance, and replace severely worn gears.

In routine maintenance, the tension and surface condition of the drive belt should be checked daily, the gearbox ventilation holes should be cleaned weekly, and the quality of the lubricating oil in the gearbox should be checked monthly. In addition, installing dust covers near the transmission system to reduce dust entering the gearbox and pulleys can effectively reduce the risk of overheating.

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